Of rivers.... He speaks of the rivers of endless joys that flow from the throne of God to water the heavenly Jerusalem, where no enemy’s ship can come, etc.
33:22. For the Lord is our judge, the Lord is our lawgiver, the Lord is our king: he will save us.
33:23. Thy tacklings are loosed, and they shall be of no strength: thy mast shall be in such condition, that thou shalt not be able to spread the flag. Then shall the spoils of much prey be divided: the lame shall take the spoil.
Thy tacklings.... He speaks of the enemies of the church, under the allegory of a ship that is disabled.
33:24. Neither shall he that is near, say: I am feeble. The people that dwell therein, shall have their iniquity taken away from them.
Isaias Chapter 34
The general judgment of the wicked.
34:1. Come near, ye Gentiles, and hear, and hearken, ye people: let the earth hear, and all that is therein, the world, and every thing that cometh forth of it.
34:2. For the indignation of the Lord is upon all nations, and his fury upon all their armies: he hath killed them, and delivered them to slaughter.
34:3. Their slain shall be cast forth, and out of their carcasses shall rise a stink: the mountains shall be melted with their blood.